设置活动页cookie path

@@ -6,13 +6,12 @@
 'use strict';
 
 // 活动页保存相应cookie的值
-exports.index = (req, res, next) => {
+exports.index = (req, res) => {
     let mktCode = req.query.mkt_code || false;
 
     // 下载浮层，下载按钮会用到该参数
     if (mktCode) {
         res.cookie('unionTypeYas', mktCode, {
-            domain: 'm.yohobuy.com',
             path: '/'
         });
     }